Overview

• Researchers at PPPL suggest using evaporating liquid lithium to shield tokamak interiors from intense plasma heat.
• Computer simulations identified the optimal placement for a lithium vapor 'cave' near the bottom of the tokamak by the center stack.
• The 'cave' configuration simplifies the device design while effectively dissipating heat and protecting the core plasma.
• An alternative method involves a capillary porous system to deliver liquid lithium directly to high-heat areas without major modifications.
• These innovative approaches aim to advance fusion technology as a reliable power source for the future.